SLLSG07 March   2025 TUSB1044A

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Switching Characteristics
    8. 5.8 Typical Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 USB 3.2
      2. 7.3.2 USB 3.2 x2 Description
      3. 7.3.3 DisplayPort
      4. 7.3.4 4-Level Inputs
      5. 7.3.5 Receiver Linear Equalization
    4. 7.4 Device Functional Modes
      1. 7.4.1 Device Configuration in GPIO Mode
      2. 7.4.2 Device Configuration in I2C Mode
      3. 7.4.3 DisplayPort Mode
      4. 7.4.4 Custom Alternate Mode
      5. 7.4.5 Linear EQ Configuration
      6. 7.4.6 Adjustable VOD Linear Range and DC Gain
      7. 7.4.7 USB3.1 Modes
    5. 7.5 Programming
      1. 7.5.1 Procedure to Write to TUSB1044A I2C Registers:
      2. 7.5.2 Procedure to Read the TUSB1044A I2C Registers:
      3. 7.5.3 Procedure to Set a Starting Sub-Address for I2C Reads:
  9. 8 Register Maps
    1. 8.1 TUSB1044A Registers
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 ESD Protection
      4. 9.2.4 Application Curve
    3. 9.3 System Examples
      1. 9.3.1 USB 3.2 only (USB/DP Alternate Mode)
      2. 9.3.2 USB3.2 and 2 Lanes of DisplayPort
      3. 9.3.3 DisplayPort Only
      4. 9.3.4 USB 3.2 Only (USB/Custom Alternate Mode)
      5. 9.3.5 USB3.2 and 1 Lane of Custom Alt Mode
      6. 9.3.6 USB3.2 and 2 Lanes of Custom Alt Mode
      7. 9.3.7 USB3.2 and 4 Lanes of Custom Alt Mode
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Support Resources
    4. 10.4 Trademarks
    5. 10.5 Electrostatic Discharge Caution
    6. 10.6 Glossary
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

7.4.2 Device Configuration in I2C Mode

The TUSB1044A is in I2C mode when I2C_EN is equal to 1. The same configurations defined in GPIO mode are also available in I2C mode. The TUSB1044A USB3.2, DisplayPort, and custom Alternate Mode configuration is controlled based on Table 7-6. The AUXP/N to SBU1/2 mapping control is based on Table 7-6.

Table 7-6 I2C Configuration Control
RegistersTUSB1044A ConfigurationVESA® DisplayPort™ Alt Mode
DFP_D Configuration
USB32_BY2_ENDIRSEL1DIRSEL0CTLSEL1CTLSEL0FLIPSEL
USB + DisplayPort Alternate Mode (Source Side)
XLLLLXPower Down–
LLLLHLOne Port USB 3.2x1 – No Flip–
LLLLHHOne Port USB 3.2x1 – With Flip–
HLLLHLOne Port USB 3.2x2 – No Flip–
HLLLHHOne Port USB 3.2x2 – With Flip–
XLLHLL4-Lane DP – No FlipC and E
XLLHLH4-Lane DP – With FlipC and E
XLLHHLOne Port USB 3.2x1 + 2-Lane DP- No FlipD and F
XLLHHHOne Port USB 3.2x1 + 2-Lane DP– With FlipD and F
USB + DisplayPort Alternate Mode (Sink Side)
XLHLLXPower Down–
LLHLHLOne Port USB 3.2x1 – No Flip–
LLHLHHOne Port USB 3.2x1 – With Flip–
HLHLHLOne Port USB 3.2x2 – No Flip–
HLHLHHOne Port USB 3.2x2 – With Flip–
XLHHLL4-Lane DP – No FlipC and E
XLHHLH4-Lane DP – With FlipC and E
XLHHHLOne Port USB 3.2x1 + 2-Lane DP- No FlipD and F
XLHHHHOne Port USB 3.2x1 + 2-Lane DP – With FlipD and F
USB + Custom Alternate Mode (Source Side)
XHLLLXPower Down–
LHLLHLOne Port USB 3.2x1 – No Flip–
LHLLHHOne Port USB 3.2x1 – With Flip–
HHLLHLOne Port USB 3.2x2 – No Flip–
HHLLHHOne Port USB 3.2x2 – With Flip–
XHLHLL4-Channel Custom Alt Mode – No Flip–
XHLHLH4-Channel Custom Alt Mode – With Flip–
XHLHHLOne Port USB 3.2x2 – No Flip–
XHLHHHOne Port USB 3.2x2 – With Flip–
USB + Custom Alternate Mode (Sink Side)
XHHLLXPower Down–
LHHLHLOne Port USB 3.2x1 – No Flip–
LHHLHHOne Port USB 3.2x1 – With Flip–
HHHLHLOne Port USB 3.2x2 – No Flip–
HHHLHHOne Port USB 3.2x2 – With Flip–
XHHHLL4-Channel Custom Alt Mode – No Flip–
XHHHLH4-Channel Custom Alt Mode – With Flip–
XHHHHLOne Port USB 3.2x2 – No Flip–
XHHHHHOne Port USB 3.2x2 – With Flip–
Table 7-7 I2C AUXP/N to SBU1/2 Mapping
Registers
AUX_SBU_OVRCTLSEL1FLIPSELMapping
00HLAUXp -> SBU1
AUXn -> SBU2
00HHAUXp -> SBU2
AUXn -> SBU1
00LXOpen
01XXAUXp -> SBU1
AUXn -> SBU2
10XXAUXp -> SBU2
AUXn -> SBU1
11XXOpen